Concept in Definition ABC

Kinematics is the branch of classical mechanics that deals with the study of the laws of movement of bodies, independently and without taking into account those causes that produce it, that is, kinematics, focuses and limits itself to studying the trajectory of a body as a function of time. The word kinematics has its origin in a Greek term that precisely means in that language to move.

To carry out his study and his purpose, kinematics uses a coordinate system that is very functional when it comes to describe the trajectories of bodies. The aforementioned system is called the Reference System and is manifested as follows: velocity It is the rhythm with which the change of position, the acceleration On the other hand, it is the rate with which the speed changes, then, speed and acceleration are the two main quantities that will describe how the position of a body changes as a function of the weather.

Now, the movement of a body can be described according to the

values speed and acceleration, which are vector magnitudes, which can give rise to: if the acceleration is zero, it gives rise to uniform rectilinear motion, the velocity remaining constant through time, if the acceleration is constant with the same direction than the velocity, gives rise to the uniformly accelerated rectilinear motion, varying the velocity over time, while, if the acceleration is constant with direction perpendicular to the speed, causes uniform circular motion, the speed being constant and changing the direction with the weather. We can also find the parabolic movement, when the acceleration is constant and is in the same plane as the velocity and the trajectory, but if it occurs the other way around, we can talk about the Coriolis effect and finally, we find the simple harmonic movement, which is a back and forth movement, such as that performed by a pendulum.

Topics in Kinematics